发明名称 |
Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program |
摘要 |
An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode.
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申请公布号 |
US8457975(B2) |
申请公布日期 |
2013.06.04 |
申请号 |
US20100694912 |
申请日期 |
2010.01.27 |
申请人 |
NEUENDORF MAX;LECOMTE JEREMIE;MULTRUS MARKUS;BAYER STEFAN;NAGEL FREDERIK;FUCHS GUILLAUME;ROBILLIARD JULIEN;RETTELBACH NIKOLAUS;GEIGER RALF;GRILL BERNHARD;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
NEUENDORF MAX;LECOMTE JEREMIE;MULTRUS MARKUS;BAYER STEFAN;NAGEL FREDERIK;FUCHS GUILLAUME;ROBILLIARD JULIEN;RETTELBACH NIKOLAUS;GEIGER RALF;GRILL BERNHARD |
分类号 |
G10L21/00 |
主分类号 |
G10L21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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